题目内容：

---what is john considering ? ---( ) his english, beacause he failed the english exam again.
A.improving B.to improve C.improve Dhaving improved

优质解答

A.improving 动名词可以作 is considering 的宾语完整的答语是：He is considering improving his English.to improve是不定式,不能作动词consider的宾语；improve是谓语动词形式,不能作宾语；having improved是动名...